Smith Meter Electronic Preset Delivery System

With ALS1 or ALD1 Firmware

SpecificationsBulletin SS06030 Issue/Rev. 0.4 (11/00)

AccuLoad III-S

The Smith Meter AccuLoad III-S is a microprocessor-based electronic instrument that can be programmed to be either a single arm or dual arm device depending on the firmware package that is installed in the unit. The single arm unit is capable of loading a straight product, up to four products as a sequential blender, or two products as a ratio blender. The dual arm unit is capable of loading two straight products, up to four products as a sequential blender, and a straight product or two, fourproduct sequential blends, depending on I/O usage.

ApplicationsApplications include batch loading of alcohols, gasolines, antifreeze, lube oils, fuel oils, solvents, fertilizers, LPGs, LNGs, and chemicals. The system is ideal for truck, barge, or rail car loading at loading racks, bulk plants, shipping docks, processing installations, and tank farms where straight products, as well as blended products, must be loaded.

Standard FeaturesStraight Product (ALS1 or ALD1 Firmware) The AccuLoad III is designed to handle either single arm, straight product loading (ALS1) or dual arm, straight product loading (ALD1). Using the ALD1 dual arm firmware, both products can be loaded simultaneously. Sequential Blending (ALS1 or ALD1 Firmware) The AccuLoad III is designed to sequentially control the loading of up to four petroleum or chemical products through a single loading arm (ALS1) or through two loading arms (ALD1). The single arm software package (ALS1) controls the loading of up to four products sequentially through a single metering system and loading arm. The dual arm software package (ALD1) controls the loading of up to four products sequentially through a single metering system and a straight product through a second metering system and loading arm. Another option using the ALD1 firmware is to have two, two product sequential blending load arms each with up to four products flowing through a metering postition and loading arm.

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Ratio Blending (ALS1 Firmware) The AccuLoad III is designed to control the blending of two petroleum or chemical products through a single loading arm (ALS1) simultaneously. Both products flow through a metering system, are co-mingled downstream of the metering system and flow through a single loading arm into a transport. Temperature Compensation The temperature compensation option provides the customer with the capability of compensating for the variance in temperature from a reference temperature. This option is used with an RTD input or a temperature transducer and, excluding the accuracy of the fluid temperature measurement, will exactly match the proper volume correction factor of ASTM-D-150 (Sept. 1980) over the fluid temperature range of -40F to 57F (-40C to 300C). The following API tables can be programmed in the AccuLoad II: 5A, 5B, 5D, 6A, 6B, 6C, 6D, 3A, 3B, 3D, 4, 4A, 4B, 4D, 53A, 53B, 53D, 54, 54A, 54B, 54C, and 54D. Pressure Compensation The pressure compensation option provides the customer with the capability of compensating the volume of product delivered at varying pressures per API Tables 11..1 and 11.., using a 4-0 mA pressure transducer input per preset position. This option also contains realtime control functions for maintaining system pressures at the meter to a minimally-acceptable, user-definable level (pressure transducer not included). This option is particularly useful for light products, such as LPG, where the compressibility factor varies a great deal with different pressures. Density Correction The density correction option provides the customer with the capability of correcting the volume of product delivered at varying densities. This can be either a frequency input or a 4-0 mA input. Metered Injectors, Piston Injectors and Smart Additives AccuLoad III has been designed to provide maximum flexibility when it comes to additive control. The unit is capable of handling metered injectors, piston injectors and smart additives simultaneously. The AccuLoad is capable of controlling two additive injector metered systems. (See Hardware Options for additional injector systems.) The AccuLoad controls the additive solenoids to precisely inject the additive into the main product. It monitors the pulses of the additive meter and controls the amount of additive, based on the incoming pulses from the additive meter and the main product meter. Additive monitoring and smart additives provide the capability for the AccuLoad to monitor the feedback from the piston injectors of the additive products. The AccuLoad monitors the injector feedback switches for a change of state and counts the errors and alarms if no change is detected within the cycle or a period of

cycle. The totalized volume will print on the emulated load ticket printed on the shared printer output. For Smart additives, the firmware has also been designed with a Master/Slave type of communications, with the AccuLoad being the master and the Additive Injector System being the slave. The AccuLoad constantly interrogates the Additive Injector System for a change in status. The AccuLoad can be operated with communications control over the Smart Additive Injecctor System or with communication/pulse control. When the AccuLoad has communication control over the Additive System, it will constantly monitor the Additive System for its status, poll the additive totals, and signal the system when to inject the additive - all through the communications line. The AccuLoad communications package has also been designed with a pass-through communications mode. In this mode of operation the supervisory computer can talk to the Additive Injector System through the communication lines that have been run to the AccuLoad and from the AccuLoad to the Additive Injector System(s). Dual Pulse Security This option provides continuous monitoring, error indication alarm, and correction of the pulse transmission for each preset position per API Petroleum Measurement Standard, Chapter 5.5, Level A, and Institute of Petroleum Standard, IP 5/76, Part XIII, Section 1, Level A (PPS High-Security Pulse Transmitter is not included). The PPS High-Security Transmitter provides four signals: A, A inverted, B, and B inverted. The A and B signals are 90 electrical degrees out-of-phase and used for dual-pulse security. The A and A inverted, and B andB inverted signals are 180 electrical degrees out-of-phase and are used for transmitter power sensing. If power sensing is not required, only A and B are used for dual-pulse security. Automated Proving Mode The AccuLoad III firmware provides an automated proving mode of operation. When the automated proving mode is activated the AccuLoad will calculate the meter factor for a proving run based on information that is obtained during the prove. The operator can select the flow rate and meter factor that is being proved through the keypad of the AccuLoad. After the prove is complete the operator enters the prover volume and prover temperature and the AccuLoad will calculate the new meter factor and the operator has the choice of downloading it to the program or to ignore it. The AccuLoad also has the capability of providing an average meter factor over a maximum of six proves. This feature allows the operator to prove the meter on all four products, and four meter factors and associated flow rates for each product without having to enter the program mode for each product and meter factor. Boolean and Algebraic Processing The AccuLoad III provides the customer the flexibility to set up inputs and outputs for tasks that are not standard in the unit. Through Boolean processing, relays can be

Page SS06030

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turned on and off through equations and events set up by the customer. For example, a relay is required to close at the first trip point of the load. This can be set up using Boolean processing and does not require special software from FMC Technologies. Algebraic processing is also an area that the customer can use to do simple mathematical calculations that are not in the unit. These calculations can then be used on the configurable reports for the current batch being run by the unit.

Stability: 0.1F (0.06C)/year. Flow Totalizing: Within one pulse of input frequency. Electrical Inputs AC Instrument Power: Universal input 100 to 40 Vac, 58W maximum, 48 to 63 Hz. The AC circuitry is fuse-protected. Surge Current: 8A maximum for less than 0.1 seconds. Power Interruption Tolerance: Interruption of power greater than .05 seconds (typical) will cause an orderly shut-down of the AccuLoad and the control valve will be immediately signaled to close.Note: A constant voltage transformer (CVT) is recommended if the available ac power is suspected not to comply with these specifications.

Hardware OptionsAccuLoad Interface Control Board The AccuLoad Interface Control Board provides additional flexibility to the AccuLoad's standard features. The optional AICB Board provides ten additional metered additive injector systems. With the optional AICB Board, the AccuLoad III with ALS1 and ALD1 firmware has the capability of handling up to twelve metered injectors, twelve meter inputs, twelve solenoid valve outputs, and twelve additive pump outputs. The AICB Board is designed to either be mounted in the AccuLoad III housing or in a standalone enclosure. One of the AccuLoad III's four commmunication ports is required to communicate with the AICB Board. Civacon Overfill and Grounding Board The Civacon Overfill and Grounding Board provides an automatic overfill protection system designed to protect and streamline the loading operation. When integrated into the AccuLoad III, it provides an efficient and reliable monitoring system that will eliminate the need for costly, explosion-proof electrical boxes; automatically recognize an overfill with either optic or thermistor sensors; automatically verify the grounding connection; automatically shut down and display a message on either an overfill or loss of grounding; and enable the master AccuLoad to communicate with the slave AccuLoads on that lane. The Civacon Overfill and Grounding Board is designed to either be mounted in the AccuLoad III housing or in a standalone enclosure. One of the AccuLoad III's four communication ports is required to communicate with the Overfill and Grounding Board.

Specifications (AccuLoad III)

Accuracy Calculated Accuracy: The gross at standard temperature to gross volume ratio, excluding the accuracy of fluid temperature measurement, will exactly match the proper volume correction factor of ASTM-D-150 (Sept. 1980) over the fluid temperature range of -40F to 57F (-40C to 300C). Temperature Measurement Accuracy: Fluid temperature is measured to within 0.7F (0.4C) over the fluid temperature range of -148F to 57F (-100C to 300C). Fluid temperature is measured to within 0.45F (0.5C) over the fluid temperature range of 3F to 57F (0C to 300C).Issue/Rev. 0.4 (11/00)

Optional - AICB Board

3 This worksheet is provided to ensure the number of Inputs/Outputs required for the application are available. Totals indicate the number available in the AccuLoad III and are included except for the Analog Inputs/Outputs which are optional.

The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the specifications are currently in effect. Otherwise, the manufacturer assumes no responsibility for the use of specifications which may have been changed and are no longer in effect.